Park, Hyun S. Jang, Jong Hyun 2024-01-20T02:34:21Z 2024-01-20T02:34:21Z 2021-09-05 2016-12 2093-8551 https://pubs.kist.re.kr/handle/201004/123356 Development and discovery of efficient, cost-effective, and robust electrocatalysts are imperative for practical and widespread implementation of water electrolysis and fuel cell techniques in the anticipated hydrogen economy. The electrochemical reactions involved in water electrolysis, i.e., hydrogen and oxygen evolution reactions, are complex inner-sphere reactions with slow multi-electron transfer kinetics. To develop active electrocatalysts for water electrolysis, the physicochemical properties of the electrode surfaces in electrolyte solutions should be investigated and understood in detail. When electrocatalysis is conducted using nanoparticles with large surface areas and active surface states, analytical techniques with sub-nanometer resolution are required, along with material development. Scanning electrochemical microscopy (SECM) is an electrochemical technique for studying the surface reactions and properties of various types of electrodes using a very small tip electrode. Recently, the morphological and chemical characteristics of single nanoparticles and bio-enzymes for catalytic reactions were studied with nanometer resolution by combining SECM with atomic force microscopy (AFM). Herein, SECM techniques are briefly reviewed, including the AFM-SECM technique, to facilitate further development and discovery of highly active, cost-effective, and robust electrode materials for efficient electrolysis and photolysis. English KOREAN ELECTROCHEMISTRY SOC PHOTOELECTROCHEMICAL WATER OXIDATION L-SHAPED NANOPROBE SEMICONDUCTOR ELECTRODE HYDROGEN-PRODUCTION OXYGEN REDUCTION PHOTOCATALYSTS INTERROGATION SURFACES PROBES AFM Applications of Scanning Electrochemical Microscopy (SECM) Coupled to Atomic Force Microscopy with Sub-Micrometer Spatial Resolution to the Development and Discovery of Electrocatalysts Article 10.5229/JECST.2016.7.4.316 1 JOURNAL OF ELECTROCHEMICAL SCIENCE AND TECHNOLOGY, v.7, no.4, pp.316 - 326 JOURNAL OF ELECTROCHEMICAL SCIENCE AND TECHNOLOGY 7 4 316 326 scie scopus 000398291300010 2-s2.0-85024395186 Electrochemistry Electrochemistry Article PHOTOELECTROCHEMICAL WATER OXIDATION L-SHAPED NANOPROBE SEMICONDUCTOR ELECTRODE HYDROGEN-PRODUCTION OXYGEN REDUCTION PHOTOCATALYSTS INTERROGATION SURFACES PROBES AFM Electrochemistry Electrocatalyst Scanning Electrochemical Microscopy Atomic Force Microscopy